Single-player games like Attack of the Zektoids!
Below are 8 single-player Steam games similar to Attack of the Zektoids!, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Attack of the Zektoids! page.
Ranked picks
- 1
Digitroids
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie and Casual with Attack of the Zektoids!.
A short incremental game about harvesting Biomass from strange creatures to raise the Digitroid army. Upgrade the Finger to go full-clicker or focus on Digitroid customization for an idle path. Praise the Finger!
- 2
Flag Conquest
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie with Attack of the Zektoids!.
An incremental roguelite auto-battler. Build a persistent army, program its tactics with Gambits, and take a fallen kingdom back one flag at a time across zones that never stop scaling. Retreat, bank what you earned, come back stronger. Deep prestige, an endless Tower, and King of the Hill.
- 3
Swarm Idle
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie and Casual with Attack of the Zektoids!.
Swarm Idle is a prestige idle/incremental game where you command an alien queen and her swarm: devour 100 cities, develop eight lineages, optimize your Mutations, and progress even while offline until the whole Earth is ravaged.
- 4
Project: C.E.L.L.
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie with Attack of the Zektoids!.
An arcade incremental where you run cellular simulations for a megacorp obsessed with immortality. Break glucose, build combos, and spend ATP across a massive skill tree. Experiment with different glucose types, proteins, and lipids from your retro terminal.
- 5
Starbrew Station
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie and Casual with Attack of the Zektoids!.
Run a coffee empire in space. Hire 33 alien workers, automate brewing across 6 decks, and ride the chaos of Rush Hour surges. Prestige resets unlock layered progression systems that'll keep you optimizing for weeks. Free to play, no paywalls.
- 6
EmergenHex
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie with Attack of the Zektoids!.
Solve combat puzzles with your build-crafted loadout, automate conquered nodes across a haunted hex map for loot, and upgrade your skills, passives, and gear. Master 60+ handcrafted encounters, then enter a harder phase where the rules change for all encounters!
- 7
Rejected Draft
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie and Casual with Attack of the Zektoids!.
You are a flawed doodle thrown in the trash. Battle rival sketches in an idle climb for revenge. Every enemy is drawn by community artists, with alternate versions and direct credits. In an unusual twist on builds, choose which enemies appear in your world, then defeat them to absorb their powers.
- 8
Cosmic Cult
Single-player alternative to Attack of the Zektoids! — playable solo, no multiplayer required. Shares Indie with Attack of the Zektoids!.
Cosmic Cult is a roguelike deckbuilder where you're a fledgling god in a dying universe. Assemble the perfect deck of symbols to balance production of metal, faith, and power— or go all in on a single resource. Lead your cult in building a monument to outlast time itself, and make your own luck!